Speed-governor.



Nd. 7 1 590. PATENTEDOGZF-13,]1903.

- W. -s .MoKINNBY 7 SPEED GOVERNOR.

APPLICATION FILED AUG, 27. 1902. N0 MODEL. gums-331mm.

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No. 741,599. PATENTED OCT. 13, 1903. w. s. MoKINN-EY..

SPEED GOVERNOR. APPLICATION FILED we. 27. 1902. no menu. s SHEETS-SHEET a.

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7162?:57" ift rang Patented October 13,1903.

PATENT OFFICE.

WALTER SABIN MCKINNEY, OF CHICAGO, ILLINOIS.

SPEED-GOVERNOR.

srncrnrcnrron forming part of Letters Patent No. 741,590, dated October is, 190%. Application filed August 27, 1902 Serial No. 121,158. (No model.)

To all whom it may con/007%.-

Be it known that I, WALTER'SAB IN MCKIN;

NEY, a citizen of the United States, residing in the city of Chicago, county of Cook, State of Illinois, have invented a new and useful Improvement in Speed-Governors, of which the following is a specification;

.My invention relates to speed-governors for regulating the speed of reciprocating engines and is well suited for use in connection with Corliss engines of the type shown and described by me in a separate application for Letters Patent filed July 26, 1901, Serial No. 69, 01.

In the form of engine to which this governor is adapted the regulating-rod reciprocates for every reciprocation of the engine; and the object of my invention is to provide a governor which shall reciprocate said regulating-rod and in addition advance or'retard the period of operation thereof togkeep the engine at normal speed. I attain this object by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a general side view of the complete device. Fig. 2 is a view of the complete device, taken chiefly in vertical section on line 2 2. Fig. 3 is a cross-sectional view in plan, taken on the line 3 3, Fig. 2, and shows the governor-column in'section and the mounting of the weighted levers and connected parts. Fig. 4 is a plan sectional view on the line 4 4, Fig. 2.

Similar characters denote similar parts throughout the several views.

To facilitate an understanding of the governor, it will be described as if connected t a steam-engine. 1

The governor-frame 1 is rigidly mounted upon the engine-frame or other stationary object and affords means for supporting the moving parts of the device. The shaft 2 has a bearing3 at the governor-frame and is rotated by means of the main engine-shaft or by any other part which has a motion varying in speed with the motion of the engine. The shaftet is driven by means of the bevelgear 5, meshing with the bevel-gear 6 on said shaft 2. The upright governor-spindle 7 is driven by means of the bevel-gear 8, meshing with the bevel-gear 9 upon the said shaft 4. Said shaftetis journaled in suitable bearings ball and socketrjoint.

10 10, formed in the governor-frame 1. f The governor-column 11 risesfrom said frame 1, inclosing a portion of said spindle 7 and being provided with suitable bearings therefor.

'The arms 12 12 are pivot-ally attached to, the

upper extremity of the spindle 7 and carry at their lower extremities the balls 13 13. The collar 14 encircles said spindle 7 and being connected to the arms l2 12 by means of the links 15 15 rises and falls with the latter. Said collar 14: is connected, by means of the links 16,- Figs. 2 and 3, to the weighted levers 17. The cross-arm 18, sliding in the verticallygrooved governor-column 11, is connected to said links 16 by means of the pins 19 19, and thereby forms a guide for the lower extremity of said links. The levers 17are pivoted, by means of the pin 20, to the bracket 21, formed upon the governor-column. The pin 22 forms the connection between the said levers 17 and the upper extremity of the depending rod 23. At the lower extremity of saidrod 23 is formed the ball 24, which,

in connection with the upper socket plate' 25 and lower socket-plate 26, constitutes a, Said lower plate 26 is let into the verticallymovable sleeve 27, as shown in Fig.12, while said upper plate 25 is supported upon said ball 24. Said upper plate 25 is grooved in its upper face to register with a similar groove or ball-race in the superimposed plate 28. The bushing 29, which encircles the rod 23 and supports the weights 30, is chambered to receive and rotate with said superimposed plate 28. bushing 29 is suitably secured to said sleeve 27, preferably by screw-threading, as shown. The purpose of the described ball-bearing is to lessen the friction between the non-rotating rod 23 and the rotating weight 30. Said sleeve 27 extends downward from said bushing 29 and has, preferably near its lower extremity, the two sets of radiallyprojecting studs 31 31 for carrying the rollers 32 32. Said rollers are designed to travel in the vertical rectilinear grooves in' the outer sleeve 3&1 for imparting the rotary motion of the vertically-movable sleeve 27 thereto. The bracket 35, formed upon the governorcol- Said umn 11, is provided in its upper and lower faceszwith the ball-bearings 36 36, whereby said. sleeve is supported and allowed to rotate upon a vertical axis, but is prevented from moving laterally or vertically. At the lower extremity of said outer sleeve is formed the eccentric 37, encircled by the eccentric-strap 38 in such a manner that the rotation of said sleeve causes an approximately horizontal motion of said strap. The bearing-surfaces between said eccentric and strap are, however, spherically ground, so as to form a balland-socket joint for permitting vertical play of the farther extremity of the eccentric-rod 39 connected to said strap. Said rod 39 controls the regulating mechanism of the engine whereto the governor is attached. The rotation of the sleeve 27 is effected by means of the vertical shaft 40, which has a bearing 41 in the governor-frame 1 and is driven by the bevel-gear 42, meshing with the bevel-gear 43 upon the shaft 4. Said vertical shaft 40 extends upwardly through the suitably-apertured sleeve 34 and into the axiallychambered sleeve 27. At its upper portion said shaft has the spiral feathers 44, which act upon the rollers 45, mounted in the bushings 46 in the sleeve 27.

In the operation of the governor when the upright shaft 40 is rotated said spiral feathers operating upon the rollers 45 drive said sleeve 27 at the same speed as said shaft 40 unless there is also a movement of said sleeve in a vertical direction. In this latter case said sleeve will be advanced or retarded according as its vertical movement causes it to move with or against the spiral progression of said feathers. The tendency of said sleeve 27 under the influence of the weight 30 is to remain at the lowest position. Therefore unless said sleeve 27 is moved vertically by reason of the change of position of the governorballs 13 the sleeves 27 and 34 and eccentric 37 rotate in unison; butif, consequent upon the vertical movement of the governor-balls due to an increase or decrease in the speed of the engine, the sleeve 27 is moved vertically the angular position of the eccentric 37 relatively to the shaft 40 will be advanced or retarded, as the case may be.

The parts are so constructed that when the engine is running at a uniform rate of speed and the governor-balls have no vertical motion the eccentric-rod 39 will make the same number of strokes as the main piston of the engine. It is desirable, however, in order to obtain great sensitiveness in the governor to so proportion the gearing that the governorballs 13 will make a greater number of revolutions per minute than the main enginecrank.

What I claim as new, and desire to secure by Letters Patent, is-

1. A speed-governor comprising a rotating shaft and two other shafts geared thereto, one of the latter operating the centrifugal weights of the governor and the other also having connections to said weights, an eccentric, and compensating connections between said eccentric and said last-mentioned shaft,

said eccentric having connections to the regulating mechanism of the device to be governed.

2. A speed-governor comprising two independent shafts, centrifugal governor-weights driven by the first of said shafts, a weighted member having connections to said governorweights, and also having helical connections with the second of said shafts, and an eccentric rotating with said weighted member, connections between said eccentric and the regulating mechanism of the device to be governed, and means for driving said shafts.

3. A speed-governor comprising centrifugal governor-weights, a shaft or spindle for rotating the same, a second shaft, and an eccentric for regulating the device to be governed, connections between said eccentric and said second shaft, said connections embracing a part movable longitudinally with said second shaft and rotated thereby by means of a helix; means for rotating the governor shaft or spindle and said second shaft; and connections between said longitudinallyinovable part and said centrifugal governor weights whereby said weights control the position of said longitudinally-movable part.

4. A speed-governor comprising centrifugal governor-weights, a shaft or spindle for rotating the same, a second shaft, a sleeve movable longitudinally of said shaft and having spiral or helical connections therewith; connections between said sleeve and said weights, an eccentric, connections between said sleeve and said eccentric whereby the rotation of said sleeve is imparted to said eccentric; and means for rotating said shafts.

5. A speed governor having a rotating shaft, a sleeve encircling the same, helical connections between said shaft and said sleeve whereby said sleeve is driven, said sleeve being movable lengthwise with said shaft, means for moving said sleeve lengthwise with said shaft and connections between said sleeve and the regulating mechanism of the device to be governed.

6. A speed-governor having a rotating shaft, a sleeve encircling the same, connections between said shaft and said sleeve, one of said parts having projections engaging spiral projections upon the other of said parts whereby said sleeve is driven by said shaft, but is movable longitudinally thereof; an cecentric driven by said sleeve; and means for varying the position of said sleeve longitudinally of said shaft.

7. A speed -governor having a rotating shaft, a sleeve encircling the same, helical connections between said shaft and sleeve, the axis of the helix being coincident with the axis of said shaft, means for raising and low ering said sleeve, a second sleeve driven by said first sleeve, said sleeves having slot-andpin connections for permitting the independent motion of said sleeves lengthwise of their axes, and a governing-eccentric operated by said second sleeve.

ITO

by said inner sleeve, but is in the axial direction independent thereof, an eccentric operated by said outer sleeve, and an eccentricrod connected to the regulating parts of the device to be governed.

9. A speed governor having a rotating shaft, a sleeve encircling the same, one of said parts having a helical shoulder engaging the other of said parts, a weight tending to force said sleeve in one direction lengthwise of said shaft, a centrifugal governing device for counteracting said weight, a rotating outer sleeve wherein said inner sleeve is slidably but non-rotatively mounted, an eccentric on said outer sleeve, connections between said eccentric and the regulating mechanism of the device to be governed, and other connections between said shafts and a part of the governed device moving synchronously with said governed device.

10. An engine-governor having a rotating shaft,a.sleeve encircling the same, one of said parts having a helical shoulder engaging the other of said parts, a weight tending to.

shafts driven from a common rotating part,

force said sleeve in one direction lengthwise of said shaft, a centrifugal governing device whereby said weight may be raised, an outer sleeve wherein said first sleeve is slidably but non-revolubly mounted, a fixed bearing wherein said outer sleeve is revolubly but non-slidingly mounted, an eccentric on said sleeve, connections between said eccentric and the engine-valve gearing, and other connections between said shafts and a moving part of the engine whereby said shafts are nections between said sleeve and the governorweights formoving said sleeve lengthwise of said shaft, a revoluble outer sleeve wherein said inner sleeve is slidingly-but non-revolubly mounted, and eccentric connections between said outer sleeve and the valve-gear- 12. An engine-governor having rotating governor-weights driven from a moving part of the engine, an auxiliary governor-weight vertically movable by said rotating weights, a helically-feathered shaft driven from a moving part of the engine, connections between said shaft and said auxiliary weight,

whereby the latter is rotated, said auxiliary weight being movable lengthwise of. said shaft, and'an eccentric having connections to said weight and to the valve-gear of the engine. 7

13. An engine-governor having rotating governor-weights driven from a moving part of the engine, a rod suspended from said weights, an auxiliary weight,,.'revolubly suspended from said rod, a sleeve attached'to said rod, a helically-feathered shaft driven from a moving part of the engine, means on said sleeve for engaging the feather upon said shaft, said sleeve being movable lengthwise of said shaft, and a revolubly-supported one of said shafts constituting the governorweight spindle, and the other of said shafts havinga helical feather, revolving centrifugal weights driven by said spindle, a weighted sleeve suspended from said weights and mov able vertically therewith, said sleeves'having I inwardly-projecting parts for engaging the feather upon said shaft, an'outer sleeve revolubly supporting said inner sleeve, said'outer sleeve forming a guide for the vertical travel of said inner sleeve, a fixed bearing for said outer sleeve and eccentric connections between said outer sleeve and the valve-gear of the engine.

WALTER SABIN MCKINNEY.

Witnesses:

CHARLES L. HERRIoK, HOWARD M. COX.- 

